Mastication monitoring device



FIG. 1 is a front, left perspective view of a mastication monitoring device in accordance with my new design;

FIG. 2 is rotated, rear, left perspective view thereof;

FIG. 3 a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side elevation view thereof; and,

FIG. 8 is a left side elevation view thereof.

The mastication monitoring device may be hooked on an ear to measure data of mastication frequency and speed.

The broken lines in the drawings depict portions of the mastication monitoring device that form no part of the claimed design. 

CLAIM The ornamental design for a mastication monitoring device, as shown and described. 